ansible/cloud/amazon/s3_website.py

293 lines
10 KiB
Python

#!/usr/bin/python
#
# This is a free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This Ansible library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this library. If not, see <http://www.gnu.org/licenses/>.
DOCUMENTATION = '''
---
module: s3_website
short_description: Configure an s3 bucket as a website
description:
- Configure an s3 bucket as a website
version_added: "2.2"
author: Rob White (@wimnat)
options:
name:
description:
- "Name of the s3 bucket"
required: true
default: null
error_key:
description:
- "The object key name to use when a 4XX class error occurs. To remove an error key, set to None."
required: false
default: null
redirect_all_requests:
description:
- "Describes the redirect behavior for every request to this s3 bucket website endpoint"
required: false
default: null
region:
description:
- "AWS region to create the bucket in. If not set then the value of the AWS_REGION and EC2_REGION environment variables are checked, followed by the aws_region and ec2_region settings in the Boto config file. If none of those are set the region defaults to the S3 Location: US Standard."
required: false
default: null
state:
description:
- "Add or remove s3 website configuration"
required: false
default: present
choices: [ 'present', 'absent' ]
suffix:
description:
- "Suffix that is appended to a request that is for a directory on the website endpoint (e.g. if the suffix is index.html and you make a request to samplebucket/images/ the data that is returned will be for the object with the key name images/index.html). The suffix must not include a slash character."
required: false
default: index.html
extends_documentation_fragment:
- aws
- ec2
'''
EXAMPLES = '''
# Note: These examples do not set authentication details, see the AWS Guide for details.
# Configure an s3 bucket to redirect all requests to example.com
- s3_website:
name: mybucket.com
redirect_all_requests: example.com
state: present
# Remove website configuration from an s3 bucket
- s3_website:
name: mybucket.com
state: absent
# Configure an s3 bucket as a website with index and error pages
- s3_website:
name: mybucket.com
suffix: home.htm
error_key: errors/404.htm
state: present
'''
RETURN = '''
index_document:
suffix:
description: suffix that is appended to a request that is for a directory on the website endpoint
returned: success
type: string
sample: index.html
error_document:
key:
description: object key name to use when a 4XX class error occurs
returned: when error_document parameter set
type: string
sample: error.html
redirect_all_requests_to:
host_name:
description: name of the host where requests will be redirected.
returned: when redirect all requests parameter set
type: string
sample: ansible.com
routing_rules:
routing_rule:
host_name:
description: name of the host where requests will be redirected.
returned: when host name set as part of redirect rule
type: string
sample: ansible.com
condition:
key_prefix_equals:
description: object key name prefix when the redirect is applied. For example, to redirect requests for ExamplePage.html, the key prefix will be ExamplePage.html
returned: when routing rule present
type: string
sample: docs/
redirect:
replace_key_prefix_with:
description: object key prefix to use in the redirect request
returned: when routing rule present
type: string
sample: documents/
'''
import time
try:
from botocore.exceptions import ClientError, ParamValidationError, NoCredentialsError
import boto3
HAS_BOTO3 = True
except ImportError:
HAS_BOTO3 = False
def _create_redirect_dict(url):
redirect_dict = {}
url_split = url.split(':')
# Did we split anything?
if len(url_split) == 2:
redirect_dict[u'Protocol'] = url_split[0]
redirect_dict[u'HostName'] = url_split[1].replace('//', '')
elif len(url_split) == 1:
redirect_dict[u'HostName'] = url_split[0]
else:
raise ValueError('Redirect URL appears invalid')
return redirect_dict
def _create_website_configuration(suffix, error_key, redirect_all_requests):
website_configuration = {}
if error_key is not None:
website_configuration['ErrorDocument'] = { 'Key': error_key }
if suffix is not None:
website_configuration['IndexDocument'] = { 'Suffix': suffix }
if redirect_all_requests is not None:
website_configuration['RedirectAllRequestsTo'] = _create_redirect_dict(redirect_all_requests)
return website_configuration
def enable_or_update_bucket_as_website(client_connection, resource_connection, module):
bucket_name = module.params.get("name")
redirect_all_requests = module.params.get("redirect_all_requests")
# If redirect_all_requests is set then don't use the default suffix that has been set
if redirect_all_requests is not None:
suffix = None
else:
suffix = module.params.get("suffix")
error_key = module.params.get("error_key")
changed = False
try:
bucket_website = resource_connection.BucketWebsite(bucket_name)
except ClientError as e:
module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
try:
website_config = client_connection.get_bucket_website(Bucket=bucket_name)
except ClientError as e:
if e.response['Error']['Code'] == 'NoSuchWebsiteConfiguration':
website_config = None
else:
module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
if website_config is None:
try:
bucket_website.put(WebsiteConfiguration=_create_website_configuration(suffix, error_key, redirect_all_requests))
changed = True
except (ClientError, ParamValidationError) as e:
module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
except ValueError as e:
module.fail_json(msg=str(e))
else:
try:
if (suffix is not None and website_config['IndexDocument']['Suffix'] != suffix) or \
(error_key is not None and website_config['ErrorDocument']['Key'] != error_key) or \
(redirect_all_requests is not None and website_config['RedirectAllRequestsTo'] != _create_redirect_dict(redirect_all_requests)):
try:
bucket_website.put(WebsiteConfiguration=_create_website_configuration(suffix, error_key, redirect_all_requests))
changed = True
except (ClientError, ParamValidationError) as e:
module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
except KeyError as e:
try:
bucket_website.put(WebsiteConfiguration=_create_website_configuration(suffix, error_key, redirect_all_requests))
changed = True
except (ClientError, ParamValidationError) as e:
module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
except ValueError as e:
module.fail_json(msg=str(e))
# Wait 5 secs before getting the website_config again to give it time to update
time.sleep(5)
website_config = client_connection.get_bucket_website(Bucket=bucket_name)
module.exit_json(changed=changed, **camel_dict_to_snake_dict(website_config))
def disable_bucket_as_website(client_connection, module):
changed = False
bucket_name = module.params.get("name")
try:
client_connection.get_bucket_website(Bucket=bucket_name)
except ClientError as e:
if e.response['Error']['Code'] == 'NoSuchWebsiteConfiguration':
module.exit_json(changed=changed)
else:
module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
try:
client_connection.delete_bucket_website(Bucket=bucket_name)
changed = True
except ClientError as e:
module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
module.exit_json(changed=changed)
def main():
argument_spec = ec2_argument_spec()
argument_spec.update(
dict(
name=dict(type='str', required=True),
state=dict(type='str', required=True, choices=['present', 'absent']),
suffix=dict(type='str', required=False, default='index.html'),
error_key=dict(type='str', required=False),
redirect_all_requests=dict(type='str', required=False)
)
)
module = AnsibleModule(
argument_spec=argument_spec,
mutually_exclusive = [
['redirect_all_requests', 'suffix'],
['redirect_all_requests', 'error_key']
])
if not HAS_BOTO3:
module.fail_json(msg='boto3 required for this module')
region, ec2_url, aws_connect_params = get_aws_connection_info(module, boto3=True)
if region:
client_connection = boto3_conn(module, conn_type='client', resource='s3', region=region, endpoint=ec2_url, **aws_connect_params)
resource_connection = boto3_conn(module, conn_type='resource', resource='s3', region=region, endpoint=ec2_url, **aws_connect_params)
else:
module.fail_json(msg="region must be specified")
state = module.params.get("state")
if state == 'present':
enable_or_update_bucket_as_website(client_connection, resource_connection, module)
elif state == 'absent':
disable_bucket_as_website(client_connection, module)
from ansible.module_utils.basic import *
from ansible.module_utils.ec2 import *
if __name__ == '__main__':
main()